Water-heater.



C. D. BRENNER & W. D. PRATT.

WATER HEATER.

APPLIOATION FILED SEPT.7,1910.

Patented July 2, 1912.

UNITED STATES PATENT OFFICE.

CHRISTIAN D. BRENNER AND WILSON D. PRATT, 0F CANTON, OHIO.

WATER-HEATER.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed September 7, 1910. Serial No. 580,883.

To all whom'tt may concern:

Be it known that we, CHRISTIAN D. BREN- NER and WILSON l). FRATT, both citizens of the United States, and both residing at Canton, in the county of Stark and State of Ohio, have jointly invented a new and useful Water-Heater, of which the following is a specification.

Our invention relates to improvements in devices for heating water for the heating of buildings and the like, the invention being applicable either in hot water or steam heating systems, although principally intended for hot water systems.

The objects of our invention are to generally improve devices ofthe character mentioned, to provide a simple, substantial, easily constructed and etiicient water heater' made up of sections individually formed, preferably by casting, and combined in the manner hereinafter described.

One-of the special objects of the invention is to provide a water heater which will be economical in the use of fuel, or in other words capable of utilizing to the fullest extent the heat produced by the combustion of the fuel, while at the same time not being of complicated construction and being very easily cleaned.

The objects just noted, together with other objects readily apparent to those skilled in the art we attain by the construction illustrated in the accompanying' drawings, although the invention may be embodied in other forms, the construction illustrated being chosen by way of example. l l

In the drawings Figure 1 is a vertical longitudinal section through awater heater embodying our invention. Fig. 2 1s a vertical transverse section on the line 2-2 of Fig. 1. Fig. 3 isa reduced horizontal section on the line 3-3 of Figs. 1 and 2. Fig. 4 is a reduced horizontal section on the line 4 4 of Figs. 1 and 2. Fig. 5 is a reduced pcrspective'view of the main battle section. Fig. G is a perspectlvc view. of one of the inter-sectional water connections.

Throughout the several views similar reference numerals indicate similar parts.

The numeral 1 indicates a base or ash pit section provided with the front ash removal door 2 and having the grate bars 3 arranged across the top. Upon the base section 1 is arranged the fire box section 4, which section is provided with front and rear double,

spaced, perpendicular Valls and double, side spaced walls preferably inwardly slanted at the top as shown in Fig. 2. The space 5 .between the walls is adapted to contain water, said space extending entirely around the lire box section except at the fuel door 6 in the front.

Upon the tire box section 4 is arranged the battle. duct section 7, which section is provided with double, spaced walls on its four sides as illustrated in Fig. L1, the water space 8 extending entirely around the section.

Extending transversely from side to side of said section are a plurality of baille ducts having internally broad, flat water ways communicating with the water space 8 at bot-h ends of said ducts. The number of ballle ducts will depend upon the required capacity of the heater. In the drawings I have illustrated these battle ducts as arranged in lower and upper horizontal series, the baille ducts of the lower series being numbered 9 and the battle ducts of the upper series being numbered 10. Each of the several ducts is provided with relatively broad, parallel, relatively closely spaced lowerl and upper side walls 11 and 12 respectively, said side walls being joined alon their edges by integral edge walls 13. By t iis construction the water ways formed by the ducts are made relatively broad and flat in cross section, and the ducts of each series are all disposed with their relatively broad sides inclined to the perpendicular. the ducts of the lower series being illustrated iu the drawing as frontwardly inclined at an angle of substantially forty-five degrees and the ducts of the upper series being rearwardly inclined in similar manner and degree.l Not only are the two side walls of each duct parallel with each other, but the side walls of all the ducts in each series are also parallel with each other. The lower edge wall of each of the upper ducts is arranged intermediate the upper edge walls of two adjacent lower. ducts so that as flames and heated gases arise andv pass in an inclined direction upwardly bctween the lower ducts said flames and gases will be divided when they have reached the upper edges of said lower ducts as will be well understood by an inspection of.Fig. 1 of the drawings.

Arranged upon the section 7 is the main baille section 14 which is provided with spaced walls extending around said section and defining the water space 15, and is also provided with spaced bottom walls extending entirely from side to side and from front to rear of the heater with the eXception of the opening 16a. The spaced walls of the section 14 define the space 16 opening into the space 15 around all edges, said space 16 being adapted, like the space 15, to contain water, thus providing a layer of water eX- tending substantially lacross the top of the section 7 from side to side and from front to rear, Jc he lower wall of said space forming the main baffle plate adapted to' baffle the flames and gaseous products of combustion, the only means of escape for such products being through the opening 16.St through which opening escape is made into the space 17 and thence upwardly through the flue opening 18 and out through the flue 19. On

- the 4section 14 is arranged the section 20, said section constituting the top or uppermost section of the heater. The walls of section 20 are spaced, providing space for water at 21, said space1 extending 'entirely over the top of the heater except at the flue opening 18.

Y For the purpose of providing means for more securely holding the sectionstogether the top vedge of each section is provided with a groove 22 into which a depending tongue'23 of the next upper section is adapted to enter. Cement may be arranged in the groove 22 when putting the sections together, thus providing tight joints.

Entering the section 4 are the return pipes 24 and leavin-g the top section 2O are the pipes 25for conducting the heated water or steamA to the radiators or other places where the same is desired. A gage at 26 for deterside of the heater and sect-ions 14 and 2O are' connected at the same side as the sections 4 and 7. In this way the water entering the space 5 in the section 4 will be somewhat heated from the fire within said section, the water rising as it is heated in said section and passing into the section 7 at one side of the same, where the water will pass through the space 8, and also back and forth freely through the baffle ducts 9 and 10 from side to side of the section 7, receiving much more heat, whence said water, again rising will y pass on the other side of the heater into .the section 14, where it will be disposed across the top of section 7 in the spaces l5 and 16,

receiving still further heat, whence it will ascend into section 20 on the first mentioned side again to be heated further in, said sec. tion 20, whence it is conducted from the heater throughthe pipes 25 to the place desired. I

For the purpose of providing communication between the slots27 of adjacent sections the inner-sectional water connections 28 are ,to the other. T rough the apertures 32 in the face plate 29 machine screws 32a extend into the sections to be connected, the face plate 29 being thus drawn up tightly to said sections, with appropriate packing if desired, between the' face plate and the sections, whereby passage ways are made from the slots 27 of the lower section to the slots '27 ofthe neXt higher section as illustrated in the drawings. i

By reference to Fig. 1 it will be seenby noting the arrows shown thereon that the flames and heated gases from the fire in the section '4 as they arise are baliled by the Iforward inclined lower side walls of the baille ducts .9 and thrown forward and upward against' the rearwardly inclined lower side walls of the upper baffle ducts 10. Passing on upwardly said flames and' gases. will strike the lower surface of the section 14,

following the same to the opening 16, ascending therethrough, following along the under surface of the section' 2O and escaping through the flue opening 18 into the flue 19. Especial attention is called to section 7 and the structure therein shown. It will be seen that wit-hout materially obstructing the draft the flames and heated gases are caused to strike the inclined walls 4of the ducts 9 .and 10 in a manner well calculated to heat the water contained in said ducts. It should be noted that any dust deposited on the upper walls of said ducts will have a tendency to slide from the same downwardly into the lire again, and that there .are no corners or recesses to hold any quantity of dust or soot in and adjacent said'balile ducts.

For the purpose of cleaning out section 14 the door 33 may be provided through which door a suitabley scraper or brush may be inserted to remove any dust or sootfrom the space 17. If desired a similar clean out door may be arranged in section 7 for the purpose of more thoroughly cleaning the baffle ducts 9 and 10.

lVe claim:

1. In a water heatera baille duct section provided with double walls defining a water space extending around said section, a lower series of baille ducts extending from side to side of said. section and an lupper series of baille ducts extending from side to 'side of said section, each of said ducts in both the lower and upper series provided with relatively broad, parallel, relatively closely spaced lower and upper side walls joined along their edges by integral edge walls, the relatively broad andV flat water ways thus formed by said ducts communicatin wlth, said water space at both ends of saidducts all of the side walls of the ducts in each series being parallel with each other, the side wall of said lower series being inclined in one direction and the side walls of the upper series being inclined in the other direction.

2. In a waterheater a baille duct section 'provided with double Walls defining a water lspace extending laround said section, a lower series of baiile-.ducts extending from side to side of said section and an upper series of baille ducts extending from side to lside of said section, each of said ducts in both the lower and upper series provided other, the'side `walls of said lower seriesV being inclined in one direction and the side walls of the up er series being inclined in the otherdirectlon, and the lower edges of the ducts in said upper series arranged '1ntermediate the upper edge Walls of the ducts of the lower series.

In testimony that we claim the above, we

4have hereunto subscribed our names in the presence of twowitnesses,

CHRISTIAN DQBRENNER. WILsoN .1). PRATT.

' Witnesses y WILLIAM HfMILLER, JOHN H. SPoNsELLER. 

